CN115608991A - Large-scale double-metal shell ring flexible composite equipment and method thereof - Google Patents
Large-scale double-metal shell ring flexible composite equipment and method thereof Download PDFInfo
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- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
- B22F7/064—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts using an intermediate powder layer
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
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- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1053—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by induction
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Abstract
The invention belongs to the technical field of large-scale cylindrical shell section forming, and particularly relates to large-scale bimetal cylindrical shell section flexible composite equipment and a method thereof.
Description
Technical Field
The invention belongs to the technical field of large-scale cylindrical shell section forming, and particularly relates to large-scale double-metal cylindrical shell section flexible composite equipment and a method thereof.
Background
The large-scale shell ring is a key component in equipment such as nuclear power, rockets, petrochemicals and the like, and has extremely high requirements on the comprehensive performance because the large-scale shell ring works in high-temperature, high-pressure and corrosive environments for a long time. At present, a large-scale cylindrical shell section is mainly made of simple substance metal, the size is large, the integral heating process is dozens of hours, the wall thickness of the large-scale cylindrical shell section is large, the temperature drop in the forming process is obvious, multiple times of heat supplement is needed, and the energy consumption and the production period are greatly increased.
The large-sized bimetal shell ring is a structure and functional material with the comprehensive properties of rigidity, strength, corrosion resistance, wear resistance and the like, the base body and the coating are tightly combined through special deformation and a connection technology, the advantages of all component metals are greatly exerted, the performance defect of a single metal is overcome, the application cost can be obviously reduced, the large-sized bimetal shell ring has excellent comprehensive properties and economic benefits, and the large-sized bimetal shell ring has wide application prospects in the fields of nuclear power, petrochemical industry, ocean engineering, power electronics, mechanical manufacturing, architectural decoration and the like.
The diameter of the large-scale double-metal shell ring can reach more than 10 meters, the outer layer shell ring and the inner layer shell ring respectively play a structural role and a functional role, the thickness ratio difference is very different, and if the interface realizes metallurgical bonding, the large-scale double-metal shell ring can be widely used as key parts of basic equipment in important economic fields of nuclear power, petrifaction, wind power generation, aerospace and the like in China. In recent years, the preparation technology of large single-metal shell ring sections such as ring rolling and forging becomes mature day by day, but the mechanical sleeving process of two large shell ring sections faces great challenges due to large size, large self weight and difficult precision control, and the traditional single-pass small-deformation forming process cannot realize composite interface metallurgical bonding. In addition, the bimetal compounding technologies such as explosion compounding, rolling compounding, extrusion compounding, cast-rolling compounding and the like are only suitable for producing small-caliber bimetal composite pipes or composite plate strips, and the production requirement of large-scale bimetal cylindrical sections can not be met.
With the high-speed development of industries such as nuclear power energy, aerospace, metallurgy, petrochemical engineering and the like in China, the requirement on large-scale double-metal cylinder type is gradually increased, the target specification needs to be customized individually, higher requirements are provided for the manufacturing capacity of enterprises, and the development of high-efficiency, energy-saving and consumption-reducing flexible composite equipment and method meeting the requirement of user specification is urgently needed.
Disclosure of Invention
The invention provides large-scale double-metal shell ring flexible composite equipment and a method thereof aiming at the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a large-scale bimetal shell ring flexible composite device comprises a fixed base, a vibrator, a vibrating base, a prefabricated composite blank, a powder distributor, a supporting beam, a linear lifting mechanism, an induction heater and a water mist cooler, wherein the vibrator is installed on the fixed base, the vibrating base is installed on the vibrator, the prefabricated composite blank is installed on the vibrating base, the powder distributor is installed on the prefabricated composite blank and is used for adding intermediate metal powder into the prefabricated composite blank, the supporting beam is installed on the fixed base and is positioned on one side of the vibrating base, the linear lifting mechanism is installed on the supporting beam and is positioned in the axial direction of the vibrating base, the induction heater and the water mist cooler are installed on the linear lifting mechanism and can be driven by the linear lifting mechanism to lift along the axial direction of the prefabricated composite blank, and therefore the prefabricated composite blank is heated and cooled;
the prefabricated composite blank comprises an outer shell ring, an inner shell ring and a positioning ring, wherein the positioning ring is installed on a vibration base, the outer shell ring and the inner shell ring are installed on the positioning ring, the axes of the outer shell ring, the inner shell ring and the positioning ring coincide with the axis of the vibration base, a reserved gap is formed between the outer shell ring and the inner shell ring, and the reserved gap is communicated with a feed opening of a powder distributor.
Furthermore, the number of the vibrators is at least four, the vibrators are circumferentially and uniformly arranged on the fixed base, and the vibrators are electromagnetic vibrators or mechanical vibrators.
And further, the melting point of the intermediate metal powder is lower than that of the outer layer shell ring and the inner layer shell ring, the melting point of the intermediate metal powder is 500-1200 ℃, and the intermediate metal powder is a nano-scale or micron-scale brazing material.
Further, the linear lifting mechanism is a screw lifting mechanism.
Furthermore, the outer layer shell ring and/or the inner layer shell ring are made of materials which can be heated in an electromagnetic induction heating mode.
Still further, the difference in thickness between the outer shell section and the inner shell section is greater than 8 times.
Further, the interval between the induction heater and the water mist cooler is 50-500mm.
Furthermore, the water mist cooler is composed of an annular water pipe, a fixing rod for fixing the annular water pipe and spray heads uniformly distributed on the annular water pipe, and the fixing rod is connected with the linear lifting mechanism.
A flexible compounding method of a large-scale bimetal shell ring comprises the following steps:
1) Selecting a proper reserved gap according to a prefabricated composite blank with a target specification, connecting a fixed base, a vibrator, a vibration base, the prefabricated composite blank and a powder distributor, filling intermediate metal powder into the reserved gap of the prefabricated composite blank through the powder distributor, mounting a support beam, a linear lifting mechanism, an induction heater and a water mist cooler, and adjusting the distance H between the induction heater and the water mist cooler to a proper distance, wherein the intermediate metal powder reserved in the powder distributor is not higher than the upper end of the powder distributor;
2) Starting a vibrator to drive the vibration base, the prefabricated composite blank, the powder distributor and the intermediate metal powder to perform linear vibration at a fixed frequency f;
3) Starting an induction heater to heat the prefabricated composite blank, melting the intermediate metal powder in the reserved gap, and performing high-temperature solid-liquid diffusion on the melted intermediate metal powder and the outer-layer shell ring and the inner-layer shell ring of the prefabricated composite blank;
4) And starting the linear lifting mechanism to drive the induction heater and the water mist cooler to slowly rise at the same speed v, so that the intermediate metal powder in the reserved gap is gradually melted from bottom to top, the solid intermediate metal powder before melting is continuously filled under the action of the vibrator, and the melted intermediate metal powder is rapidly solidified under the combined action of the vibrator and the water mist cooler, so that the flexible compounding of the outer-layer shell ring and the inner-layer shell ring is realized.
Further, the adjustment of the melting temperature of the intermediate metal powder is realized by controlling the current frequency, the power supply power and the heating time of the induction heater, and the adjustment and control of the properties of the solidification structure of the molten intermediate metal powder are realized by controlling the vibration frequency f and the vibration amplitude A of the vibrator, the cooling water quantity, the cooling water temperature and the nozzle structure of the water mist cooler; the solid-liquid interface diffusion time between the melted intermediate metal powder and the prefabricated composite blank is adjusted by controlling the rising speed v of the induction heater and the water mist cooler and the distance H between the induction heater and the water mist cooler.
Compared with the prior art, the invention has the following advantages:
aiming at the problems of large diameter size, large self weight, difficult precision control and the like of the large-scale shell ring, the flexible sleeving assembly between the outer layer shell ring and the inner layer shell ring can be realized by filling the intermediate metal powder between the outer layer shell ring and the inner layer shell ring, and the problems of high requirements on coaxiality, straightness, matching precision and the like in the traditional assembly process are avoided;
according to the invention, the intermediate metal powder can be heated and melted through electromagnetic induction, so that a solid-liquid interface is formed between the melted intermediate metal powder and the outer-layer shell ring and the inner-layer shell ring, and the flexible connection and metallurgical bonding of the composite interface are finally realized by regulating and controlling the diffusion temperature and diffusion time and cooperatively controlling the cooling speed;
according to the invention, continuous filling of the intermediate metal powder can be realized through the vibration energy field, the problem of insufficient filling represented by cavities is avoided, the adjustment and control of the intermediate metal solidification structure and the comprehensive performance can be realized by matching with rapid cooling, the grain refinement is realized, the production efficiency is obviously improved, the product performance is improved, the process flow is shortened, and the personalized customization requirements of user specifications can be met;
aiming at the outstanding problems of large overall heating equipment, long consumed time and the like in the process of compounding the large-scale double-metal shell ring, the invention realizes the melting and solidification of intermediate metal powder through local electromagnetic induction heating and cooling control, and can realize energy conservation, consumption reduction and near-net forming.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a prefabricated composite billet according to the present invention;
FIG. 3 is a schematic diagram of a water mist cooler according to the present invention;
in the figure, a fixed base-1, a vibrator-2, a vibrating base-3, a prefabricated composite blank-4, a powder distributor-5, a supporting beam-6, a linear lifting mechanism-7, an induction heater-8, a water mist cooler-9, an outer layer cylinder section-401, an inner layer cylinder section-402, a positioning ring-403, a reserved gap-404, an annular water pipe-901, a fixed rod-902 and a spray head-903.
Detailed Description
In order to further illustrate the technical solution of the present invention, the present invention is further illustrated by the following examples.
Example 1
As shown in fig. 1 to 3, a large-scale bimetal shell ring flexible composite device comprises a fixed base 1, vibrators 2, a vibrating base 3, a prefabricated composite blank 4, a powder distributor 5, a supporting beam 6, a linear lifting mechanism 7, induction heaters 8 and water mist coolers 9, wherein the number of the vibrators 2 is at least four, the vibrators 2 are uniformly arranged on the fixed base 1 in a circumferential manner, the vibrators 2 are electromagnetic vibrators or mechanical vibrators, the vibrating base 3 is mounted on the vibrators 2, the prefabricated composite blank 4 is mounted on the vibrating base 3, the powder distributor 5 is mounted on the prefabricated composite blank 4 and is used for adding intermediate metal powder into the prefabricated composite blank 4, the supporting beam 6 is mounted on the fixed base 1 and is positioned on one side of the vibrating base 3, the linear lifting mechanism 7 is a screw rod lifting mechanism, the linear lifting mechanism 7 is mounted on the supporting beam 6 and is positioned in the axial direction of the vibrating base 3, the induction heaters 8 and the water mist coolers 9 are mounted on the linear lifting mechanism 7 and can be driven by the linear lifting mechanism 7 to lift along the axial direction of the prefabricated composite blank 4 so as to heat and cool the prefabricated composite blank 4, and the prefabricated heaters 8 and the prefabricated blanks, and the prefabricated heaters 9 are arranged at intervals of 50-50 mm;
the prefabricated composite blank 4 comprises an outer shell ring 401, an inner shell ring 402 and a positioning ring 403, the positioning ring 403 is installed on a vibration base 3, the outer shell ring 401 and the inner shell ring 402 are installed on the positioning ring 403, the outer shell ring 401 and/or the inner shell ring 402 are made of materials capable of being heated in an electromagnetic induction heating mode, the thickness difference between the outer shell ring 401 and the inner shell ring 402 is larger than 8 times, the axes of the outer shell ring 401, the inner shell ring 402 and the positioning ring 403 are coincident with the axis of the vibration base 3, a reserved gap 404 is formed between the outer shell ring 401 and the inner shell ring 402, the reserved gap 404 is communicated with a blanking port of a powder distributor 5, the melting point of intermediate metal powder is lower than that of the outer shell ring 401 and the inner shell ring 402, the melting point of the intermediate metal powder is 500-1200 ℃, and the intermediate metal powder is a nano-grade or micron-grade brazing material;
the water mist cooler 9 is composed of an annular water pipe 901, a fixing rod 902 for fixing the annular water pipe 901 and spray heads 903 uniformly distributed on the annular water pipe 901, wherein the fixing rod 902 is connected with the linear lifting mechanism 7.
A large-scale bimetal shell ring flexible compounding method comprises the following steps:
1) Selecting a proper reserved gap 404 according to a prefabricated composite blank 4 with a target specification, connecting a fixed base 1, a vibrator 2, a vibration base 3, the prefabricated composite blank 4 and a powder distributor 5, filling intermediate metal powder into the reserved gap 404 of the prefabricated composite blank 4 through the powder distributor 5, arranging a support beam 6, a linear lifting mechanism 7, an induction heater 8 and a water mist cooler 9, and adjusting the distance H between the induction heater 8 and the water mist cooler 9 to a proper distance, wherein the intermediate metal powder reserved in the powder distributor 5 is not higher than the upper end of the powder distributor 5;
2) Starting the vibrator 2 to drive the vibration base 3, the prefabricated composite blank 4, the powder distributor 5 and the intermediate metal powder to linearly vibrate at a fixed frequency f;
3) Starting an induction heater 8 to heat the prefabricated composite blank 4, adjusting the melting temperature of the intermediate metal powder by controlling the current frequency, the power supply power and the heating time of the induction heater 8, melting the intermediate metal powder in the reserved gap 404, and performing high-temperature solid-liquid diffusion on the melted intermediate metal powder, the outer-layer shell ring 401 and the inner-layer shell ring 402 of the prefabricated composite blank 4;
4) Starting the linear lifting mechanism 7, driving the induction heater 8 and the water mist cooler 9 to slowly rise at the same speed v, so that the intermediate metal powder in the reserved gap 404 is gradually melted from bottom to top, the solid intermediate metal powder before melting is continuously filled under the action of the vibrator 2, the melted intermediate metal powder is rapidly solidified under the combined action of the vibrator 2 and the water mist cooler 9, and the flexible combination of the outer-layer shell ring 401 and the inner-layer shell ring 402 is realized, wherein the control of the vibration frequency f and the vibration amplitude A of the vibrator 2 and the cooling water quantity, the cooling water temperature and the nozzle structure of the water mist cooler 9 is realized, and the regulation and control of the solidification structure performance of the melted intermediate metal powder are realized; the adjustment of the solid-liquid interface diffusion time between the melted intermediate metal powder and the prefabricated composite billet 4 is realized by controlling the ascending speeds v of the induction heater 8 and the water mist cooler 9 and the distance H between the two.
Example 2
Preparing Q420 low-alloy high-strength structural steel/SA 508-III ultra-low carbon stainless steel bimetal shell ring;
1) The outer-layer shell ring 401 is Q420 low-alloy high-strength structural steel, the outer diameter is 5000mm, the wall thickness is 300mm, the height is 2000mm, the inner-layer shell ring 402 is SA 508-III ultra-low-carbon stainless steel, the outer diameter is 4350mm, the wall thickness is 50mm, the height is 2000mm, a reserved gap 404 between the outer-layer shell ring 401 and the inner-layer shell ring 402 is 25mm, the intermediate metal powder is micron-sized high-purity copper powder, the melting point is 1083 ℃, the induction heater 8 is a digital electromagnetic heater special for stainless steel and has a self-protection function, the maximum heating temperature can reach 1600 ℃, the fixed base 1, the vibrator 2, the vibrating base 3, the prefabricated sleeved blank 4 and the powder distributor 5 are connected, the intermediate metal powder is filled into the reserved gap 404 of the prefabricated composite blank 4 through the powder distributor 5, the intermediate metal powder reserved in the powder distributor 5 is not higher than the upper end of the powder distributor 5, the fixed base 1, the supporting beam 6, the linear lifting mechanism 7, the induction heater 8 and the water mist cooler 9 are connected, and the distance H =100mm between the induction heater 8 and the water mist cooler 9 is set;
2) Starting the vibrator 2 to drive the vibrating base 3, the prefabricated sleeved blank 4, the powder distributor 5 and the middle metal powder to perform reciprocating linear vibration with the amplitude of A =1mm at the fixed frequency f =50 Hz;
3) Starting an induction heater 8 to perform electromagnetic induction heating on the prefabricated sheathing blank 4, enabling the temperature of the inner layer cylindrical section 402 to reach 1120 ℃, melting the low-melting-point intermediate metal powder in the reserved gap 404, and performing high-temperature solid-liquid diffusion on the melted intermediate metal powder, the outer layer cylindrical section 401 and the inner layer cylindrical section 402 of the prefabricated sheathing blank 4;
4) Starting the linear lifting mechanism 7 to enable the induction heater 8 and the water mist cooler 9 to slowly rise at the same speed v =10mm/s, continuously filling unmelted solid intermediate metal powder above the induction heater 8 under the vibration action of the vibrator 2, and rapidly vibrating and solidifying the molten intermediate metal powder below the induction heater 8 under the combined action of the vibrator 2 and the water mist cooler 9 to realize flexible compounding of the outer-layer shell ring 401 and the inner-layer shell ring 402;
the high-temperature solid-liquid diffusion temperature between the molten intermediate metal powder and the outer-layer shell ring 401 and the inner-layer shell ring 402 is 1120 ℃, the solid-liquid interface diffusion time is 10s according to the distance H =100mm between the induction heater 9 and the water mist cooler 10 and the same slow rising speed v =10mm/s, the solidified liquid intermediate metal powder is compact in structure and excellent in performance under the auxiliary action of a vibration energy field with fixed frequency f =50Hz and amplitude A =1mm, the shearing strength of the interface between the molten and solidified intermediate metal powder and the outer-layer shell ring 401 and the inner-layer shell ring 402 reaches the strength of a solidified pure copper matrix, and flexible compounding and near-net forming of the Q420 low-alloy high-strength structural steel/SA 508-III ultra-low-carbon stainless steel double-metal shell ring are achieved.
Example 3
Preparing a Q420 low-alloy high-strength structural steel/TC 4 titanium alloy bimetal cylinder section;
1) The outer layer cylinder section 401 is made of Q420 low-alloy high-strength structural steel, the outer diameter is 8000mm, the wall thickness is 300mm, the height is 1500mm, the inner layer cylinder section 402 is made of TC4 titanium alloy, the outer diameter is 7300mm, the wall thickness is 80mm, the height is 1500mm, a reserved gap 404 between the outer layer cylinder section 401 and the inner layer cylinder section 402 is 50mm, the intermediate metal powder is micron-sized aluminum-based brazing material Al-7.5Si, the brazing temperature is 560 to 600 ℃, the induction heater 8 is a digital electromagnetic heater special for titanium alloy, the self-protection function is provided, the maximum heating temperature can reach 1200 ℃, the fixed base 1, the vibrator 2, the vibration base 3, the prefabricated blank 4 and the powder distributor 5 are connected, the intermediate metal powder is filled into the reserved gap 404 of the prefabricated composite blank 4 through the powder distributor 5, the intermediate metal powder reserved in the powder distributor 5 is not higher than the upper end of the powder distributor 5, the fixed base 1, the supporting beam 6, the linear lifting mechanism 7, the induction heater 8 and the water mist cooler 9 are connected, and the distance H =150mm between the induction heater 8 and the water mist cooler 9 is set;
2) Starting the vibrator 2 to drive the vibrating base 3, the prefabricated sheathing blank 4, the powder distributor 5 and the middle metal powder to perform reciprocating linear vibration with the amplitude of A =0.5mm at the fixed frequency f =25 Hz;
3) Starting an induction heater 8 to perform electromagnetic induction heating on the prefabricated sheathing blank 4, enabling the temperature of the inner layer cylindrical shell 402 to reach 600 ℃, melting the low-melting-point intermediate metal powder in the reserved gap 404, and performing high-temperature solid-liquid diffusion on the melted intermediate metal powder, the outer layer cylindrical shell 401 and the inner layer cylindrical shell 402 of the prefabricated sheathing blank 4;
4) Starting the linear lifting mechanism 7 to enable the induction heater 8 and the water mist cooler 9 to slowly rise at the same speed v =5mm/s, continuously filling unmelted solid intermediate metal powder above the induction heater 8 under the vibration action of the vibrator 2, and rapidly vibrating and solidifying the molten intermediate metal powder below the induction heater 8 under the combined action of the vibrator 2 and the water mist cooler 9 to realize flexible compounding of the outer-layer shell ring 401 and the inner-layer shell ring 402;
the high-temperature solid-liquid diffusion temperature between the molten intermediate metal powder and the outer-layer shell ring 401 and the inner-layer shell ring 402 is 600 ℃, the solid-liquid interface diffusion time is 30s according to the fact that the distance H =150mm between the induction heater 9 and the water mist cooler 10 and the same slow rising speed v =5mm/s, the solidified liquid intermediate metal powder is compact in structure and excellent in performance under the auxiliary action of a vibration energy field with the fixed frequency f =25Hz and the amplitude A =0.5mm, the interface shear strength between the molten and solidified intermediate metal powder and the outer-layer shell ring 401 and the inner-layer shell ring 402 reaches the strength of the Al-7.5Si matrix of the solidified aluminum-based material, and flexible compounding and near-net forming of the Q420 low-alloy high-strength structural steel/TC 4 titanium alloy double-metal shell ring are achieved.
While there have been shown and described what are at present considered to be the essential features and advantages of the invention, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a flexible equipment complex of large-scale bimetal shell ring which characterized in that: the device comprises a fixed base (1), a vibrator (2), a vibration base (3), a prefabricated composite blank (4), a powder distributor (5), a supporting beam (6), a linear lifting mechanism (7), an induction heater (8) and a water mist cooler (9), wherein the vibrator (2) is installed on the fixed base (1), the vibration base (3) is installed on the vibrator (2), the prefabricated composite blank (4) is installed on the vibration base (3), the powder distributor (5) is installed on the prefabricated composite blank (4) and is used for adding intermediate metal powder into the prefabricated composite blank (4), the supporting beam (6) is installed on the fixed base (1) and is positioned on one side of the vibration base (3), the linear lifting mechanism (7) is installed on the supporting beam (6) and is positioned in the axis direction of the vibration base (3), the induction heater (8) and the water mist cooler (9) are installed on the linear lifting mechanism (7), and can be driven by the linear lifting mechanism (7) to lift the prefabricated blank (4) along the axis direction of the prefabricated composite blank so as to heat and cool the prefabricated composite blank (4);
prefabricated composite blank (4) include outer shell ring (401), inlayer shell ring (402) and location ring (403), location ring (403) are installed on vibration base (3), install on location ring (403) outer shell ring (401) and inlayer shell ring (402), the axis of outer shell ring (401), inlayer shell ring (402) and location ring (403) coincides with the axis of vibration base (3) form between outer shell ring (401) and the inlayer shell ring (402) and reserve clearance (404), reserve clearance (404) and the feed opening of powder distributing device (5) and be linked together.
2. The large-scale bimetal shell ring flexible composite device according to claim 1, wherein: the number of the vibrators (2) is at least four, the vibrators are circumferentially and uniformly arranged on the fixed base (1), and the vibrators (2) are electromagnetic vibrators or mechanical vibrators.
3. The large-scale bimetal shell ring flexible composite equipment according to claim 1, characterized in that: the melting point of the intermediate metal powder is lower than that of the outer shell ring (401) and the inner shell ring (402), the melting point of the intermediate metal powder is 500-1200 ℃, and the intermediate metal powder is a nano-scale or micro-scale brazing material.
4. The large-scale bimetal shell ring flexible composite equipment according to claim 1, characterized in that: the linear lifting mechanism (7) is a screw lifting mechanism.
5. The large-scale bimetal shell ring flexible composite device according to claim 1, wherein: the outer layer shell ring (401) and/or the inner layer shell ring (402) are made of materials which can be heated in an electromagnetic induction heating mode.
6. The large-scale bimetal shell ring flexible composite device according to claim 1, wherein: the thickness difference between the outer layer shell ring (401) and the inner layer shell ring (402) is larger than 8 times.
7. The large-scale bimetal shell ring flexible composite equipment according to claim 1, characterized in that: the distance between the induction heater (8) and the water mist cooler (9) is 50-500mm.
8. The large-scale bimetal shell ring flexible composite device according to claim 1, wherein: the water mist cooler (9) is composed of an annular water pipe (901), a fixing rod (902) used for fixing the annular water pipe (901) and spray heads (903) uniformly distributed on the annular water pipe (901), and the fixing rod (902) is connected with the linear lifting mechanism (7).
9. A compounding method of a large-scale double-metal shell ring flexible compounding device based on any one of claims 1 to 8, wherein the compounding method comprises the following steps: the method comprises the following steps:
1) selecting a proper reserved gap (404) according to a prefabricated composite blank (4) with a target specification, connecting a fixed base (1), a vibrator (2), a vibration base (3), the prefabricated composite blank (4) and a powder distributor (5), filling intermediate metal powder into the reserved gap (404) of the prefabricated composite blank (4) through the powder distributor (5), arranging a supporting beam (6), a linear lifting mechanism (7), an induction heater (8) and a water mist cooler (9) when the intermediate metal powder reserved in the powder distributor (5) is not higher than the upper end of the powder distributor (5), and adjusting the distance H between the induction heater (8) and the water mist cooler (9) to a proper distance;
2) Starting the vibrator (2) to drive the vibrating base (3), the prefabricated composite blank (4), the powder distributor (5) and the intermediate metal powder to linearly vibrate at a fixed frequency f;
3) Starting an induction heater (8) to heat the prefabricated composite blank (4), melting the intermediate metal powder in the reserved gap (404), and performing high-temperature solid-liquid diffusion on the melted intermediate metal powder and an outer-layer shell ring (401) and an inner-layer shell ring (402) of the prefabricated composite blank (4);
4) And (3) starting a linear lifting mechanism (7), driving the induction heater (8) and the water mist cooler (9) to slowly rise at the same speed v, so that the intermediate metal powder in the reserved gap (404) is gradually melted from bottom to top, the solid intermediate metal powder before melting is continuously filled under the action of the vibrator (2), the melted intermediate metal powder is rapidly solidified under the combined action of the vibrator (2) and the water mist cooler (9), and the flexible compounding of the outer-layer shell ring (401) and the inner-layer shell ring (402) is realized.
10. The flexible compounding method of the large-scale bimetal shell ring according to claim 9, characterized in that: the adjustment of the melting temperature of the intermediate metal powder is realized by controlling the current frequency, the power supply power and the heating time of the induction heater (8), and the adjustment of the solidification structure performance of the melted intermediate metal powder is realized by controlling the vibration frequency f and the vibration amplitude A of the vibrator (2) and the cooling water quantity, the cooling water temperature and the nozzle structure of the water mist cooler (9); the solid-liquid interface diffusion time between the melted intermediate metal powder and the prefabricated composite blank (4) is adjusted by controlling the rising speed v of the induction heater (8) and the water mist cooler (9) and the distance H between the two.
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Application publication date: 20230117 |